Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1977-09-26
1979-06-12
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
261 69R, F02M 722
Patent
active
041580290
ABSTRACT:
A carburetor for an internal combustion engine has an air passage, a throttle valve movable in the air passage for controlling flow of air therethrough, a source of fuel, and a fuel passage through which fuel is drawn from the source to the air passage for mixing with air to produce an air-fuel mixture combusted in the engine. The fuel passage has an orifice at one end communicating with the fuel source. A metering rod has a diameter variable along its length and is positioned in the orifice in response to movement of the throttle valve thereby to control the quantity of fuel drawn through the fuel passage. The position of the metering rod in the orifice is varied in response to a change in the engine vacuum level when a change in the load on the engine occurs. The movement of the metering rod produced in response to a change in the engine vacuum level is limited thereby to limit the variation in quantity of fuel drawn through the fuel passage when a change in engine vacuum level occurs. When the engine vacuum level is less than a predetermined level, a relatively greater movement is produced in the position of the metering rod in the orifice than the limited movement whereby a relatively greater quantity of fuel is drawn through the fuel passage during cranking of the engine.
REFERENCES:
patent: 2711885 (1955-06-01), Moseley et al.
patent: 3100236 (1963-08-01), Ott et al.
patent: 3149184 (1964-09-01), Szwargulski
patent: 3317199 (1967-05-01), Reifel
patent: 3350074 (1967-10-01), Kalert, Jr. et al.
ACF Industries Incorporated
Casey Edward H.
Miles Tim R.
Muller J. Joseph
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